78310-21-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 78310-21-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,3,1 and 0 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 78310-21:
(7*7)+(6*8)+(5*3)+(4*1)+(3*0)+(2*2)+(1*1)=121
121 % 10 = 1
So 78310-21-1 is a valid CAS Registry Number.